CA2069446A1 - Scanner to combine partial fragments of a complete code - Google Patents

Scanner to combine partial fragments of a complete code

Info

Publication number
CA2069446A1
CA2069446A1 CA 2069446 CA2069446A CA2069446A1 CA 2069446 A1 CA2069446 A1 CA 2069446A1 CA 2069446 CA2069446 CA 2069446 CA 2069446 A CA2069446 A CA 2069446A CA 2069446 A1 CA2069446 A1 CA 2069446A1
Authority
CA
Canada
Prior art keywords
string
cluster
code data
scanner
scanned code
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2069446
Other languages
French (fr)
Other versions
CA2069446C (en
Inventor
Charles Lapinski
Charles Eckert
Richard J. Skokowski, Jr.
James N. Cox
William H. Scott
Edward I. Chaleff
Jeffrey G. Sharpe
David A. Wurz
Meghanad D. Wagh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Accu Sort Systems Inc
Original Assignee
Charles Lapinski
Charles Eckert
Richard J. Skokowski, Jr.
James N. Cox
William H. Scott
Edward I. Chaleff
Jeffrey G. Sharpe
David A. Wurz
Meghanad D. Wagh
Accu-Sort Systems, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Charles Lapinski, Charles Eckert, Richard J. Skokowski, Jr., James N. Cox, William H. Scott, Edward I. Chaleff, Jeffrey G. Sharpe, David A. Wurz, Meghanad D. Wagh, Accu-Sort Systems, Inc. filed Critical Charles Lapinski
Publication of CA2069446A1 publication Critical patent/CA2069446A1/en
Application granted granted Critical
Publication of CA2069446C publication Critical patent/CA2069446C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
    • G06K7/10871—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels randomly oriented data-fields, code-marks therefore, e.g. concentric circles-code
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • G06K7/0166—Synchronisation of sensing process by means of clock-signals derived from the code marks, e.g. self-clocking code
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/146—Methods for optical code recognition the method including quality enhancement steps
    • G06K7/1491—Methods for optical code recognition the method including quality enhancement steps the method including a reconstruction step, e.g. stitching two pieces of bar code together to derive the full bar code

Abstract

A method for processing scanned code data, including a plurality of strings, to determine whether the scanned code data is part of a valid code begins by examining a first string of a first scanned code data. A cluster is opened with the first string if the first string contains a start pattern. At least one valid middle portion of the first string is identified and a transition position count associated with the at least one valid middle portion is stored. A second scanned code data is searched for a second string matching at least part of the first string in the cluster. If a match is found, then the second string is added to the end of the cluster. The cluster is closed upon detection of a stop pattern and is then decoded.
CA002069446A 1990-09-21 1991-09-23 Scanner to combine partial fragments of a complete code Expired - Fee Related CA2069446C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/586,545 1990-09-21
US07586545 US5124538B1 (en) 1988-08-26 1990-09-21 Scanner
PCT/US1991/006876 WO1992005516A1 (en) 1990-09-21 1991-09-23 Scanner to combine partial fragments of a complete code

Publications (2)

Publication Number Publication Date
CA2069446A1 true CA2069446A1 (en) 1992-03-22
CA2069446C CA2069446C (en) 1999-11-09

Family

ID=24346186

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002069446A Expired - Fee Related CA2069446C (en) 1990-09-21 1991-09-23 Scanner to combine partial fragments of a complete code

Country Status (9)

Country Link
US (5) US5124538B1 (en)
EP (1) EP0511337B1 (en)
JP (1) JP2828776B2 (en)
AT (1) ATE216105T1 (en)
AU (1) AU8843491A (en)
CA (1) CA2069446C (en)
DE (1) DE69132985T2 (en)
ES (1) ES2174824T3 (en)
WO (1) WO1992005516A1 (en)

Families Citing this family (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5124538B1 (en) * 1988-08-26 1995-01-31 Accu Sort Systems Inc Scanner
US5495097A (en) * 1993-09-14 1996-02-27 Symbol Technologies, Inc. Plurality of scan units with scan stitching
US5194722A (en) * 1990-05-02 1993-03-16 Ncr Corporation Enhanced UPC bar code decoding system reconstructing complete bar code signals from partial bar code scans
US5276316A (en) * 1990-05-02 1994-01-04 Ncr Corporation Method for reconstructing complete bar code signals from partial bar code scans
JPH0464187A (en) * 1990-07-02 1992-02-28 Sumitomo Electric Ind Ltd Bar code reader
US6631842B1 (en) * 2000-06-07 2003-10-14 Metrologic Instruments, Inc. Method of and system for producing images of objects using planar laser illumination beams and image detection arrays
JP3190448B2 (en) * 1991-10-25 2001-07-23 オリンパス光学工業株式会社 2D barcode symbol reader
US5821523A (en) * 1992-03-12 1998-10-13 Bunte; Alan G. Combined code reader and digital camera using a common photodetector
US5902988A (en) * 1992-03-12 1999-05-11 Norand Corporation Reader for decoding two-dimensional optically readable information
KR940002697A (en) * 1992-07-13 1994-02-19 시모야마 도시로오 Bar code scan stitch
US5475207A (en) * 1992-07-14 1995-12-12 Spectra-Physics Scanning Systems, Inc. Multiple plane scanning system for data reading applications
US5311000A (en) * 1992-07-31 1994-05-10 Spectra-Physics Scanning Systems, Inc. Bar code scanner and method of scanning
US5296691A (en) * 1992-09-14 1994-03-22 Lazerdata Corporation Scanning device for reconstructing a complete code from scanned segments
US5493108A (en) * 1992-10-14 1996-02-20 Spectra-Physics Scanning Systems, Inc. Method and apparatus for recognizing and assembling optical code information from partially scanned segments
US5481097A (en) * 1993-01-25 1996-01-02 Psc Inc. Apparatus and method for decoding bar codes
US5457308A (en) * 1993-09-14 1995-10-10 Symbol Technologies, Inc. Bar code scan stitching
AU681421B2 (en) * 1993-09-14 1997-08-28 Symbol Technologies, Inc. Bar code scan stitching
US5554841A (en) * 1994-03-01 1996-09-10 Lynn Ltd. Article marker and decoding method
US5942741A (en) * 1994-03-04 1999-08-24 Welch Allyn, Inc. Apparatus for optimizing throughput in decoded-output scanners and method of using same
US7387253B1 (en) 1996-09-03 2008-06-17 Hand Held Products, Inc. Optical reader system comprising local host processor and optical reader
US5773806A (en) * 1995-07-20 1998-06-30 Welch Allyn, Inc. Method and apparatus for capturing a decodable representation of a 2D bar code symbol using a hand-held reader having a 1D image sensor
GB2291524B (en) * 1994-07-21 1997-01-29 Fujitsu Ltd Reading bar codes
JP3234405B2 (en) * 1994-08-05 2001-12-04 富士通株式会社 Bar code reader and method
GB9420307D0 (en) * 1994-10-08 1994-11-23 Plessey Telecomm Fast serial pattern recognition
DE19504912C2 (en) * 1995-02-15 1998-07-02 Leuze Electronic Gmbh & Co Method and device for recognizing barcode symbols
US5773807A (en) * 1995-07-28 1998-06-30 Symbol Technologies, Inc. Arrangement for and method of minimizing reading errors in bar code symbol readers
JP3470738B2 (en) * 1995-09-14 2003-11-25 富士通株式会社 Barcode reading device and barcode reading method
JPH09161001A (en) * 1995-12-05 1997-06-20 Fujitsu Ltd Bar code reader
AU2078297A (en) * 1996-03-07 1997-09-22 Accu-Sort Systems, Inc. Dynamic focusing apparatus for optical imaging systems
AU3497497A (en) 1996-06-21 1998-01-07 Norand Corporation Too long code reader performing coded image decoding
US5701003A (en) * 1996-10-22 1997-12-23 Computer Identics Corporation Intensity compensated scanning system
DE19711873C2 (en) * 1997-03-21 2003-03-06 Sick Ag Method and device for reading a bar code
DE19716886C2 (en) * 1997-04-22 2001-02-01 Sick Ag Method and device for reading a bar code
DE19734031A1 (en) * 1997-08-06 1999-02-11 Sick Ag Method and device for reading a bar code consisting of a predetermined number of code elements
US6454168B1 (en) 1998-09-14 2002-09-24 Psc Scanning, Inc. Correlation and stitching techniques in a bar code scanning system
US6494376B1 (en) 1998-09-14 2002-12-17 Psc Scanning, Inc. Compensation for scan line variations in a bar code scanner system
US6585157B2 (en) 1998-09-14 2003-07-01 Psc Scanning, Inc. Symbology determination to aid decoding in a bar code scanning system
US6513714B1 (en) 1998-09-14 2003-02-04 Psc Scanning, Inc. Character reconstruction and element level processing in bar code scanning system
US6267293B1 (en) * 1999-02-22 2001-07-31 Cimatrix Bar code scanning system and method
DE69941872D1 (en) * 1999-10-26 2010-02-11 Datalogic Spa A method of reconstructing a stripe code by successive scans
US7100832B2 (en) * 2000-04-18 2006-09-05 Metrologic Instruments, Inc. Bioptical laser scanning system providing 360° of omnidirectional bar code symbol scanning coverage at point of sale station
US20030132291A1 (en) * 2002-01-11 2003-07-17 Metrologic Instruments, Inc. Point of sale (POS) station having bar code reading system with integrated internet-enabled customer-kiosk terminal
DE60030985T2 (en) * 2000-11-14 2007-06-14 Datalogic S.P.A., Lippo Di Calderara Di Reno Method for locating the transitions between parts of a strip code
US6478224B1 (en) 2001-03-02 2002-11-12 Psc Scanning, Inc. Symbology-independent method and apparatus for identifying potential bar code data
US7296748B2 (en) 2002-01-11 2007-11-20 Metrologic Instruments, Inc. Bioptical laser scanning system providing 360° of omnidirectional bar code symbol scanning coverage at point of sale station
US7016895B2 (en) 2002-07-05 2006-03-21 Word Data Corp. Text-classification system and method
US20040006459A1 (en) * 2002-07-05 2004-01-08 Dehlinger Peter J. Text-searching system and method
US7024408B2 (en) 2002-07-03 2006-04-04 Word Data Corp. Text-classification code, system and method
US20040006547A1 (en) * 2002-07-03 2004-01-08 Dehlinger Peter J. Text-processing database
US7181451B2 (en) * 2002-07-03 2007-02-20 Word Data Corp. Processing input text to generate the selectivity value of a word or word group in a library of texts in a field is related to the frequency of occurrence of that word or word group in library
US7386442B2 (en) * 2002-07-03 2008-06-10 Word Data Corp. Code, system and method for representing a natural-language text in a form suitable for text manipulation
US7003516B2 (en) * 2002-07-03 2006-02-21 Word Data Corp. Text representation and method
US20040054520A1 (en) * 2002-07-05 2004-03-18 Dehlinger Peter J. Text-searching code, system and method
US7188769B2 (en) * 2003-04-07 2007-03-13 Silverbrook Research Pty Ltd Laser scanner using rotating holographic optical element
US7620070B1 (en) * 2003-06-24 2009-11-17 Nvidia Corporation Packet processing with re-insertion into network interface circuitry
CA2535409A1 (en) * 2003-09-23 2005-04-21 Secure Symbology, Inc. Method for improving security and enhancing information storage capability
US20060027657A1 (en) 2004-08-04 2006-02-09 Laurens Ninnink Method and apparatus for high resolution decoding of encoded symbols
US7175090B2 (en) * 2004-08-30 2007-02-13 Cognex Technology And Investment Corporation Methods and apparatus for reading bar code identifications
US20060047656A1 (en) * 2004-09-01 2006-03-02 Dehlinger Peter J Code, system, and method for retrieving text material from a library of documents
US7963448B2 (en) * 2004-12-22 2011-06-21 Cognex Technology And Investment Corporation Hand held machine vision method and apparatus
US9552506B1 (en) 2004-12-23 2017-01-24 Cognex Technology And Investment Llc Method and apparatus for industrial identification mark verification
US8108176B2 (en) * 2006-06-29 2012-01-31 Cognex Corporation Method and apparatus for verifying two dimensional mark quality
US20080035390A1 (en) * 2006-08-09 2008-02-14 Wurz David A Dimensioning and weighing system
US8169478B2 (en) * 2006-12-14 2012-05-01 Cognex Corporation Method and apparatus for calibrating a mark verifier
US7314175B1 (en) * 2006-12-20 2008-01-01 Ncr Corporation Methods and apparatus for improved use of partial bar code information to decode a complete bar code
EP1975849B1 (en) * 2007-03-27 2011-04-27 Casio Computer Co., Ltd. Bar-code reading apparatus and computer-readable medium
US9734376B2 (en) 2007-11-13 2017-08-15 Cognex Corporation System and method for reading patterns using multiple image frames
DE102010014937B4 (en) 2010-04-14 2013-10-17 Ioss Intelligente Optische Sensoren & Systeme Gmbh A method of reading a code on a substrate by assembling code fragments using an imaging code reader
US8500029B2 (en) 2011-08-27 2013-08-06 Abraham Wien Time management system and value bar code
US8523076B2 (en) 2012-01-10 2013-09-03 Metrologic Instruments, Inc. Omnidirectional laser scanning bar code symbol reader generating a laser scanning pattern with a highly non-uniform scan density with respect to line orientation
US9110595B2 (en) 2012-02-28 2015-08-18 AVG Netherlands B.V. Systems and methods for enhancing performance of software applications
US9361499B2 (en) 2014-10-09 2016-06-07 Cognex Corporation Barcode decoding
US9495571B1 (en) 2015-09-30 2016-11-15 Datalogic Automation, Inc. Two-dimensional representation of linear barcode derived from laser barcode scanner scanline data
US10909341B2 (en) * 2016-10-26 2021-02-02 Datalogic Automation, Inc. Data processing reduction in barcode reading systems with overlapping frames
US10013897B1 (en) 2017-01-08 2018-07-03 Abraham Wien Time tracking labeling system and method to make it

Family Cites Families (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL120919C (en) * 1958-07-24
FR1225428A (en) * 1959-05-26 1960-06-30 Bull Sa Machines Improvements to data recording
NL253925A (en) * 1959-07-17
US3220301A (en) * 1960-07-11 1965-11-30 Magnavox Co Coding and photographing device
US3227861A (en) * 1961-01-11 1966-01-04 Perkin Elmer Corp Man and machine readable label
FR1312000A (en) * 1961-11-02 1962-12-14 Bull Sa Machines Photographic memory system
BE632285A (en) * 1962-05-15
BE638318A (en) * 1962-10-11
US3373265A (en) * 1962-12-12 1968-03-12 Bell & Howell Co Information storage and retrieval process and coded record card therefor
DE1267003B (en) * 1963-05-02 1968-04-25 Zuse K G Device for scanning digital data on recording media
US3211470A (en) * 1963-07-02 1965-10-12 Gift Stars Inc Coded coupon
SE332089B (en) * 1965-06-14 1971-01-25 Svenska Dataregister Ab
US3461276A (en) * 1965-10-20 1969-08-12 Western Union Telegraph Co Reusable data card
US3418456A (en) * 1966-12-14 1968-12-24 Monarch Marking Systems Inc Encoded tag reader
US4161436A (en) * 1967-03-06 1979-07-17 Gordon Gould Method of energizing a material
US4053845A (en) * 1967-03-06 1977-10-11 Gordon Gould Optically pumped laser amplifiers
US3588457A (en) * 1968-06-11 1971-06-28 Willem Jan Bijleveld Bearer with logically coded digits
US3643068A (en) * 1969-03-12 1972-02-15 Spartanics Random oriented decoder for label decoding
US3671722A (en) * 1969-06-30 1972-06-20 Ncr Co Transition code recognition system
US3688955A (en) * 1969-11-24 1972-09-05 Automatisme Cie Gle Character-reading apparatus incorporating electronic scanning circuitry
US3663802A (en) * 1970-03-09 1972-05-16 Ernest Wildhaber Record for machine scanning
US3657522A (en) * 1970-05-12 1972-04-18 Ernest Wildhaber Record for machine scanning
US3639728A (en) * 1970-07-17 1972-02-01 Scan Systems Inc Material container sorting apparatus and method
US3812325A (en) * 1970-08-18 1974-05-21 Chesapeake & Ohio Railway Means for reading and interpreting color-coded identification labels
US3676646A (en) * 1970-08-31 1972-07-11 Ibm Document with chemically developable precisely defined alphanumeric characters
US3711683A (en) * 1971-01-08 1973-01-16 Monarch Marking Systems Inc Re-price marking method and record member
US3701097A (en) * 1971-01-20 1972-10-24 Identicon Corp Decoding bar patterns
US3663800A (en) * 1971-01-21 1972-05-16 Hughes Aircraft Co Optical label reader and decoder
GB1392924A (en) * 1971-03-23 1975-05-07 Rca Corp Optical scanning arrangement and article useful therewith
US3818191A (en) * 1971-04-01 1974-06-18 Stanford Research Inst Automatic non-contact recognition of coded insignia
US3728677A (en) * 1971-05-10 1973-04-17 Stanford Research Inst Rotation-independent reading of rectangular insignia
US3761685A (en) * 1971-05-24 1973-09-25 Pitney Bowes Alpex Data processing means with printed code
US3811033A (en) * 1971-06-29 1974-05-14 Monarch Marking Systems Inc Coded record interpreting system
US3800282A (en) * 1971-07-23 1974-03-26 Scanner Code reading system
GB1408135A (en) * 1971-09-01 1975-10-01 Dataplex Ltd Apparatus for reproducing programmed selections of data recorded in coded form on magnetic cards
US3770940A (en) * 1971-11-12 1973-11-06 Ibm Optical bar coding scanning apparatus
US3717750A (en) * 1971-12-07 1973-02-20 Ncr Input control logic for a code reading system
US3860794A (en) * 1971-12-13 1975-01-14 Bendix Corp System for converting modulated signals to squarewave outputs
US3735096A (en) * 1971-12-13 1973-05-22 Bendix Corp System for processing coded pulse data
US3916160A (en) * 1971-12-13 1975-10-28 Bendix Corp Coded label for automatic reading systems
US3813140A (en) * 1971-12-13 1974-05-28 Bendix Corp Rotating prism scanning system having range compensation
US3789193A (en) * 1972-01-07 1974-01-29 Ncr Price setting keys and method of transferring price to printer
US3845279A (en) * 1972-03-01 1974-10-29 L Rosdorff Notation system
US3786237A (en) * 1972-03-13 1974-01-15 R Postal Mechanically readable system using premarked substrate
US3774014A (en) * 1972-03-20 1973-11-20 Pitney Bowes Alpex Printed code scanning system
US3862400A (en) * 1972-03-31 1975-01-21 Electronics Corp America Sensing system for bar patterns
US3899687A (en) * 1972-07-10 1975-08-12 Identicon Corp Optical label scanning
US3808405A (en) * 1972-07-19 1974-04-30 Bendix Corp Symmetrically encoded label for automatic label reading systems
US3801775A (en) * 1972-08-07 1974-04-02 Scanner Method and apparatus for identifying objects
US3868634A (en) * 1972-11-03 1975-02-25 Scanner Reading of contrasting data by means of continuously attempting to decode read signals
US3860790A (en) * 1973-01-22 1975-01-14 Minnesota Mining & Mfg Data processing form
US3902047A (en) * 1973-08-31 1975-08-26 Ferranti Packard Ltd Label reader with rotatable television scan
US3906203A (en) * 1973-09-20 1975-09-16 Monarch Marking Systems Inc Data retrieval and error detection circuitry for a width-modulated bar-code scanning apparatus
US3979577A (en) * 1973-12-05 1976-09-07 Data General Corporation Code recognition record medium and technique
US3887793A (en) * 1974-01-11 1975-06-03 Computer Identics Corp Interstitial contrasting coded mark label reading system
US3916158A (en) * 1974-01-21 1975-10-28 Pitney Bowes Inc Optical scanner and method for producing a scanning pattern
US3909787A (en) * 1974-07-01 1975-09-30 Ibm Candidate selection processor
US3896295A (en) * 1974-08-02 1975-07-22 Minnesota Mining & Mfg Data processing form
US3961164A (en) * 1974-09-13 1976-06-01 Westvaco Corporation UPC encodation verifier
US3995166A (en) * 1975-04-16 1976-11-30 Coherent Radiation Optical scan pattern generator for code reading systems
US4097729A (en) * 1975-05-27 1978-06-27 Data General Corporation Scanning system and method
US3988573A (en) * 1975-06-09 1976-10-26 Schiller Industries, Inc. Three line scanner for bar code symbols
US4013893A (en) * 1975-08-07 1977-03-22 Welch Allyn, Inc. Optical bar code scanning device
US4020357A (en) * 1976-01-29 1977-04-26 Metrologic Instruments, Inc. Signal processing for print scanners
US4056710A (en) * 1976-04-16 1977-11-01 Coherent Radiation System for decoding bar code
US4064390A (en) * 1976-04-19 1977-12-20 Spectra-Physics, Inc. Method and apparatus for reading coded labels
US4109143A (en) * 1976-06-18 1978-08-22 Matsushita Electric Industrial Co., Ltd. Optical reader
JPS599946B2 (en) 1976-11-08 1984-03-06 株式会社レオ技研 information reading device
US4093865A (en) * 1977-04-29 1978-06-06 National Semiconductor Corporation Code symbol scanner using a double X bar pattern
FR2423829A1 (en) * 1978-04-19 1979-11-16 Telemecanique Electrique PROCEDURE AND DEVICE FOR READING A MEDIA OF INFORMATION CODED ACCORDING TO A BAR CODE, APPLICABLE WHEN THE DIRECTION OF THE BARS IN RELATION TO THAT OF THE READING BEAM MAY VARY
US4343969A (en) * 1978-10-02 1982-08-10 Trans-Data Associates Apparatus and method for articulatory speech recognition
US4239151A (en) * 1979-04-19 1980-12-16 International Business Machines Corporation Method and apparatus for reducing the number of rejected documents when reading bar codes
JPS55162257A (en) * 1979-06-05 1980-12-17 Fujitsu Ltd Semiconductor element having substrate bias generator circuit
US4283957A (en) 1979-06-25 1981-08-18 Zonic Corporation Torsional exciter for a rotating structure
US4409469A (en) * 1980-01-21 1983-10-11 Sharp Kabushiki Kaisha Optical bar code reader
US4329574A (en) * 1980-06-25 1982-05-11 International Business Machines Corp. Bar code candidate select circuit
US4308455A (en) * 1980-06-26 1981-12-29 E. I. Du Pont De Nemours And Company Method for decoding bar-coded labels
JPS57164373A (en) * 1981-04-02 1982-10-08 Omron Tateisi Electronics Co Bar code reader
US4379224A (en) * 1981-05-26 1983-04-05 Honeywell Inc. Apparatus for interpreting Code 39 bar code data
JPS57204977A (en) * 1981-06-11 1982-12-15 Nippon Denso Co Ltd Method and device for bar code read
US4421978A (en) * 1981-08-20 1983-12-20 International Business Machines Corporation Decoding method for multicharacter labels
US4652730A (en) 1985-01-03 1987-03-24 Honeywell Information Systems Inc. Method and apparatus for skew compensation in an optical reader
JPH06102873B2 (en) 1985-03-07 1994-12-14 日本化薬株式会社 Labeling method for hydrophobic materials
JPS61210484A (en) 1985-03-15 1986-09-18 Nec Corp Optical symbol reading device
JPS6231485A (en) * 1985-07-31 1987-02-10 Nec Corp Bar code reader
US4960985A (en) 1985-11-21 1990-10-02 Metrologic Instruments, Inc. Compact omnidirectional laser scanner
US4713532A (en) * 1985-11-21 1987-12-15 Metrologic Instruments, Inc. Compact omnidirectional laser scanner
JPS62231387A (en) * 1986-03-31 1987-10-09 Tokyo Electric Co Ltd Bar code scanner and pos terminal equipment incorporating same
US4717818A (en) * 1986-06-26 1988-01-05 International Business Machines Corporation Bar code label identification circuit
US4745484A (en) * 1986-07-30 1988-05-17 Drexler Technology Corporation Method and apparatus for stepped imaging in reading data
US4816661A (en) * 1986-12-22 1989-03-28 Symbol Technologies, Inc. Scan pattern generators for bar code symbol readers
DE3728211A1 (en) * 1987-08-24 1989-03-16 Sick Optik Elektronik Erwin SCANNER FOR DETECTING BAR CODES ON OBJECTS
DE3854885T2 (en) * 1987-09-28 1996-05-15 Sumitomo Electric Industries Combine read bar code data
US4988852A (en) * 1988-07-05 1991-01-29 Teknekron Transportation Systems, Inc. Bar code reader
US4873426A (en) * 1988-08-03 1989-10-10 Image Business Systems Corporation Technique for reading bar codes
US5124538B1 (en) * 1988-08-26 1995-01-31 Accu Sort Systems Inc Scanner
US5028772A (en) * 1988-08-26 1991-07-02 Accu-Sort Systems, Inc. Scanner to combine partial fragments of a complete code
JPH02141889A (en) * 1988-11-22 1990-05-31 Eastman Kodatsuku Japan Kk Bar-code reading method
US5059779A (en) * 1989-06-16 1991-10-22 Symbol Technologies, Inc. Scan pattern generators for bar code symbol readers
US5241164A (en) 1990-01-05 1993-08-31 Symbol Technologies, Inc. Method of decoding bar code symbols from partial scans
KR940002697A (en) * 1992-07-13 1994-02-19 시모야마 도시로오 Bar code scan stitch
US5296691A (en) * 1992-09-14 1994-03-22 Lazerdata Corporation Scanning device for reconstructing a complete code from scanned segments
AU681421B2 (en) * 1993-09-14 1997-08-28 Symbol Technologies, Inc. Bar code scan stitching
JP3470738B2 (en) * 1995-09-14 2003-11-25 富士通株式会社 Barcode reading device and barcode reading method

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US5124538A (en) 1992-06-23
EP0511337B1 (en) 2002-04-10
DE69132985D1 (en) 2002-05-16
EP0511337A1 (en) 1992-11-04
CA2069446C (en) 1999-11-09
JPH05503185A (en) 1993-05-27
JP2828776B2 (en) 1998-11-25
US6206289B1 (en) 2001-03-27
US6669091B2 (en) 2003-12-30
DE69132985T2 (en) 2002-10-17
ATE216105T1 (en) 2002-04-15
US5124538B1 (en) 1995-01-31
US5466921A (en) 1995-11-14
EP0511337A4 (en) 1993-04-07
AU8843491A (en) 1992-04-15
US7000838B2 (en) 2006-02-21
WO1992005516A1 (en) 1992-04-02
US20010045462A1 (en) 2001-11-29
ES2174824T3 (en) 2002-11-16
US20040182931A1 (en) 2004-09-23

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